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TDSQL Boundless

DocumentaçãoTDSQL BoundlessGeneral ReferenceSQL ReferenceData DictionaryINFORMATION_SCHEMAEVENT_TRACE

EVENT_TRACE

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Última atualização: 2026-05-26 15:05:58

Function

The EVENT_TRACE view is used to query event information in the TDSQL Boundless kernel. An event is a special type of log that contains contextual information linked with trace data. This information helps users gain a deep understanding of the system's internal operational processes.

Field Description

Field Name
Type
Description
event_timestamp
timestamp
Timestamp of event occurrence
event_name
varchar(65535)
Event name
tid
longlong
Thread ID of event occurrence
trace_id
byte
Trace ID of event
span_id
longlong
Unique identifier for the corresponding SPAN

Examples

tdsql > SELECT * FROM INFORMATION_SCHEMA.EVENT_TRACE;
+----------------------------+----------------------+---------+----------------------------------+---------+
| event_timestamp            | event_name           | tid     | trace_id                         | span_id |
+----------------------------+----------------------+---------+----------------------------------+---------+
| 2025-12-01 16:34:44.589668 | query end            | 1048622 | 00000000000000000000000000000000 |       0 |
| 2025-12-01 16:34:44.589679 | closing tables       | 1048622 | 00000000000000000000000000000000 |       0 |
| 2025-12-01 16:34:44.589685 | freeing items        | 1048622 | 00000000000000000000000000000000 |       0 |
| 2025-12-01 16:34:44.589723 | cleaning up          | 1048622 | 00000000000000000000000000000000 |       0 |
| 2025-12-01 16:34:45.798871 | starting             | 1048622 | 00000000000000000000000000000000 |       0 |
| 2025-12-01 16:34:45.799009 | checking permissions | 1048622 | 00000000000000000000000000000000 |       0 |
| 2025-12-01 16:34:45.799031 | Opening tables       | 1048622 | 00000000000000000000000000000000 |       0 |
| 2025-12-01 16:34:45.799151 | init                 | 1048622 | 00000000000000000000000000000000 |       0 |
| 2025-12-01 16:34:45.799156 | System lock          | 1048622 | 00000000000000000000000000000000 |       0 |
| 2025-12-01 16:34:45.799193 | optimizing           | 1048622 | 00000000000000000000000000000000 |       0 |
| 2025-12-01 16:34:45.799195 | optimizing           | 1048622 | 00000000000000000000000000000000 |       0 |
| 2025-12-01 16:34:45.799202 | statistics           | 1048622 | 00000000000000000000000000000000 |       0 |
| 2025-12-01 16:34:45.799230 | preparing            | 1048622 | 00000000000000000000000000000000 |       0 |
| 2025-12-01 16:34:45.799251 | statistics           | 1048622 | 00000000000000000000000000000000 |       0 |
| 2025-12-01 16:34:45.799256 | preparing            | 1048622 | 00000000000000000000000000000000 |       0 |
| 2025-12-01 16:34:45.799265 | executing            | 1048622 | 00000000000000000000000000000000 |       0 |
| 2025-12-01 16:34:45.803909 | end                  | 1048622 | 00000000000000000000000000000000 |       0 |
| 2025-12-01 16:34:45.803913 | query end            | 1048622 | 00000000000000000000000000000000 |       0 |
| 2025-12-01 16:34:45.803925 | closing tables       | 1048622 | 00000000000000000000000000000000 |       0 |
| 2025-12-01 16:34:45.803937 | freeing items        | 1048622 | 00000000000000000000000000000000 |       0 |
| 2025-12-01 16:34:45.804007 | cleaning up          | 1048622 | 00000000000000000000000000000000 |       0 |
+----------------------------+----------------------+---------+----------------------------------+---------+
21 rows in set (0.02 sec)
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